SwiftOnSecurity on X: “Fun Fact: Your WiFi access point needs to know what country it’s in because of law about specific radio powers and channels and other functionality. It can be super-complicated! For example, DFS detects radar pulses and switches frequency for safety.”
Posted by jpluimers on 2025/04/07
Not just for safety: if you keep blasting your WiFi radio at frequencies used by weather radar, you are highly visible on the weather map causing predictions to fail.
[WaybackSave/Archive] SwiftOnSecurity on X: “Fun Fact: Your WiFi access point needs to know what country it’s in because of law about specific radio powers and channels and other functionality. It can be super-complicated! For example, DFS detects radar pulses and switches frequency for safety. “
[WaybackSave/Archive] db.txt – kernel/git/wens/wireless-regdb.git – wens’s fork of wireless-regdb.git
(there are non-fork version of it is as well, but this one is good enough for the point)
Weather radar effect image on the right from
[WaybackSave/Archive] Wes on X: “@SwiftOnSecurity also fun fact: if you set this up incorrectly, you can show up on the weather radar”
Related: Dynamic frequency selection – Wikipedia
--jeroen
The Wiert Corner - irregular stream of stuff 
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